Temporal processing and speech perception through multi-channel and channel-free hearing aids in hearing impaired.
Objective: To compare the temporal processing skills and speech in noise perception of hearing-impaired individuals through channel free and multichannel hearing aids. Design: A quasi-experimental study. Study sample: Twenty-one participants with sensory neural hearing loss were involved in the stud...
| Published in: | International Journal of Audiology Vol. 58; no. 12; pp. 923 - 933 |
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| Main Authors: | , |
| Format: | research tables/charts tracings Journal Article |
| Published: |
Taylor & Francis Ltd
Dec2019
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=139617928&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 139617928 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Dec2019 vid: 58 iid: 12 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 139617928 139617928 139617928 10.1080/14992027.2019.1660005 139617928 ppf: 923 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Temporal processing and speech perception through multi-channel and channel-free hearing aids in hearing impaired. aug: au: Mohan, Kishan Madikeri Rajashekhar, Bellur affil: Department of Speech and Hearing, Manipal College of Health Professionals, Manipal Academy of Higher Education, Manipal, Karnataka, India sug: subj: Speech Perception Hearing Aids Persons with Disabilities Hearing Disorders Noise Human Male Female Adolescence Adult Middle Age Quasi-Experimental Studies Hearing Loss, Sensorineural Sound Consumer Attitudes Speech Acoustics Audiometers Data Analysis Software Descriptive Statistics Friedman Test One-Way Analysis of Variance Post Hoc Analysis Wilcoxon Signed Rank Test Adolescent: 13-18 years Adult: 19-44 years Middle Aged: 45-64 years Male Female ab: Objective: To compare the temporal processing skills and speech in noise perception of hearing-impaired individuals through channel free and multichannel hearing aids. Design: A quasi-experimental study. Study sample: Twenty-one participants with sensory neural hearing loss were involved in the study. They were subjected to a series of temporal processing (TMTF, GDT & CMR-UCM/CM) and speech in noise test using a multichannel and channel-free hearing aid. Subsequently, they rated sound quality and hearing aid preferences. Objectively, the hearing aid signal output was acoustically analysed for modulation detection and gap detection tasks. Results: In all the test, participants manifested equal performance with the tested devices except CMR-CM task where channel-free outperformed. Acoustic analysis showed evidence of spectral and temporal distortion in channel-free hearing aid, similar to multichannel hearing aids. Finally, channel free was the most preferred hearing aid by less experienced participants. Conclusion: All the measures indicated similar performance across the tested devices and complemented one another in their explanation of study findings. Faster gain adjustments of channel free across the frequency facilitated better-comodulated masking release than that achieved with MCC. Preference for the sound quality of the channel free was based on factors, usually subjective. Channel-free hearing aid depicted spectral and envelope distortion, like MCC. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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